While this is nothing new, the interesting thing here is that this discovery was made thanks to Google. The search giant cooperated with NASA to set up a machine learning system to scan through the data generated by the Kepler telescope:
NASA will host a media teleconference at 1 p.m. EST Thursday, Dec. 14, to announce the latest discovery made by its planet-hunting Kepler space telescope. The discovery was made by researchers using machine learning from Google. Machine learning is an approach to artificial intelligence, and demonstrates new ways of analyzing Kepler data.